Photonic-crystal-based beam splitters

We proposed and demonstrated two different methods to split electromagnetic waves in three-dimensional photonic crystals. By measuring transmission spectra, it was shown that the guided mode in a coupled-cavity waveguide can be splitted into the coupled-cavity or planar waveguide channels without radiation losses. The flow of electromagnetic waves through output waveguide ports can also be controlled by introducing extra defects into the crystals. Our results may have an important role in the design of efficient power splitters in a photonic circuit.

[1]  Ho,et al.  Defect structures in a layer-by-layer photonic band-gap crystal. , 1995, Physical review. B, Condensed matter.

[2]  Ekmel Ozbay,et al.  Propagation of photons by hopping: A waveguiding mechanism through localized coupled cavities in three-dimensional photonic crystals , 2000 .

[3]  C. Martijn de Sterke.  SUPERSTRUCTURE GRATINGS IN THE TIGHT-BINDING APPROXIMATION , 1998 .

[4]  C. Soukoulis.  Photonic Band Gap Materials , 1996 .

[5]  Ekmel Ozbay,et al.  Heavy photons at coupled-cavity waveguide band edges in a three-dimensional photonic crystal , 2000 .

[6]  Costas M. Soukoulis,et al.  Waveguide bends in three-dimensional layer-by-layer photonic bandgap materials , 1999 .

[7]  T. Baba,et al.  Analysis of finite 2D photonic crystals of columns and lightwave devices using the scattering matrix method , 1999 .

[8]  Thomas Søndergaard,et al.  Energy flow in photonic crystal waveguides , 2000 .

[9]  A. Priou,et al.  Experimental demonstration of electrically controllable photonic crystals at centimeter wavelengths , 1999 .

[10]  Ekmel Ozbay,et al.  EXPERIMENTAL DEMONSTRATION OF PHOTONIC CRYSTAL BASED WAVEGUIDES , 1999 .

[11]  Susumu Noda,et al.  Highly confined waveguides and waveguide bends in three-dimensional photonic crystal , 1999 .

[12]  J. Joannopoulos,et al.  High Transmission through Sharp Bends in Photonic Crystal Waveguides. , 1996, Physical review letters.

[13]  Che Ting Chan,et al.  Photonic band gaps in three dimensions: New layer-by-layer periodic structures , 1994 .

[14]  Toshihiko Baba,et al.  Observation of light propagation in photonic crystal optical waveguides with bends , 1999 .

[15]  E. Ozbay.  Layer-by-layer photonic crystals from microwave to far-infrared frequencies , 1996 .

[16]  Richard W. Ziolkowski,et al.  FDTD analysis of PBG waveguides, power splitters and switches , 1999 .

[17]  J. Joannopoulos,et al.  Experimental demonstration of guiding and bending of electromagnetic waves in a photonic crystal , 1998, Science.

[18]  J. Joannopoulos,et al.  Donor and acceptor modes in photonic band structure. , 1991, Physical review letters.

[19]  B. Temelkuran,et al.  Tight-binding description of the coupled defect modes in three-dimensional photonic crystals , 2000, Physical review letters.

[20]  Masaya Notomi,et al.  Photonic crystals for micro lightwave circuits using wavelength-dependent angular beam steering , 1999 .

[21]  Steven G. Johnson,et al.  Photonic Crystals: Molding the Flow of Light , 1995 .

[22]  A. Tomita,et al.  Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide , 2000 .